Oxytocin is my drug of choice. I don't do drugs, I am drugs. When we have higher oxytocin levels circulating in the body, amazing things start to happen. Often dubbed the "love hormone" or "cuddle hormone," oxytocin plays a crucial role in social bonding, sexual reproduction, childbirth, and the period after childbirth. The good news is, you don't need a prescription to increase your oxytocin levels.